Home / 20,997.44-31,539.90-17,716.96

Finding the Fourth Proportional to 20,997.44, 31,539.90 and 17,716.96

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Solution

The fourth proportional to 20,997.44, 31,539.90 and 17,716.96 is: 26,612.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997.44 : 31,539.90 = 17,716.96 : x
  2. Step 2: Convert to fraction form
    20,997.44/31,539.90 = 17,716.96/x
  3. Step 3: Cross multiply
    20,997.44x = 31,539.90 × 17,716.96
  4. Step 4: Simplify right side
    20,997.44x = 558,791,146.70
  5. Step 5: Solve for x
    x = 558,791,146.70/20,997.44
  6. Step 6: Final answer
    x = 26,612.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.